The definition of nauseous is a feeling of being sick and feeling as if you need to vomit, or something disgusting or sickening.
The definition of queasy means sick to your stomach or nauseous, or being slightly worried or nervous about something.
Unable to produce a profitable yield of crops:
Find another word for sickish. In this page you can discover 4 synonyms, antonyms, idiomatic expressions, and related words for sickish, like: nauseated, nauseous, queasy and sick.